An acceptance control chart has limits that are based on the specification limits for the product rather than limits which differentiate between random and assignable causes. Under which if the following circumstance should a QC manager consider using an acceptance control chart?

Related MCQs

• Control chart theory is based on the differences of the causes of variations in quality. Variations in quality may be produced by assignable causes. All of the following are examples of assignable causes except:
• The concept of rational sub group means that subgroups or samples be selected such that if assignable causes are present the chances for differences between subgroups will be ______________.
• Some organizations today are using "six sigma", to set the upper and lower limits on control charts rather than the traditional sigmas.
• If data for MR chat shows non-normality, it is better to determine the control limits for the individuals control chart based on the ______________ of the correct underlying distribution.
• Quality in a project's product is essential for the enhancement of the project manager and the selling organization. To ensure that the customer perceives a quality product, the project manager must inform the ustomer of the ______________ to be used so the customer will not have a perception of ______________.
• Suppose box A contains 4 red and 5 blue coins and box B contains 6 red and 3 blue coins. A coin is chosen at random from the box A and placed in box B. Finally, a coin is chosen at random from among those now in box B. What is the probability a blue coin was transferred from box A to box B given that the coin chosen from box B is red?
• In the area of quality, project managers are struggling with the training and indoctrination of individuals in the need to do the work right the first time to conform to the requirement. Occasionally, the project manager will discover an individual, either in the planning or actual work, doing more than is called for in the specification. These individuals need training to reduce the level of "over building" because ______________.
• The thickness of aluminum sheet is specified to be of 6±2 mm. The Upper Specification Limit and Lower Specification Limit for the sheet are:
• The basic assumption of calculating the control limits based on average sample size (for a p chart) will ______________ from/as those previously observed.
• A project manager notices that all the measurements recorded on a control chart lie within the control band range. However, most of the measurements are below the midpoint (negative variance). Quality management practice offers us what guidance in dealing with this situation?